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RE: [PSUBS-MAILIST] Motors for dry submersible



Hi Pierre
 
Yep, 500kg - and it is very small!
 
Thanks for the advice re the Minn Kotas - I will definitely go with them
 
Mitch
-----Original Message-----
From: owner-personal_submersibles@psubs.org [mailto:owner-personal_submersibles@psubs.org]On Behalf Of pierre&marie
Sent: Sunday, May 04, 2003 3:45 AM
To: personal_submersibles@psubs.org
Subject: Re: [PSUBS-MAILIST] Motors for dry submersible

Hi Mitch!
 
A 2 seater at 500kg? (1100lbs) Are you sure about that? I'm asking because I'm building a 1 seater that weight exactly that and IT's very small. Just wandering...
 
For the motors I will use Minn kota troller motors. I will plug a hose inside the motors to compensate them from the air inside the sub. (IT's a dry-ambient sub). You could also fill the motors with electric oil but I think you loose power that way. I think that Alec Smith is using a scuba regulator to compensate his motors on Solo. His sub is a 1atm sub.
 
To steer, I will use two motors. One on each side of the sub. I will cut power from one side to turn. Like a tank or a buldozer.
 
There is a lot of info on the site for using Minn Kota motors.
 
Good luck!
 
Pierre Poulin
Canada
 
 
 
----- Original Message -----
From: mitch
To: personal_submersibles@psubs.org
Sent: Saturday, May 03, 2003 12:14 PM
Subject: [PSUBS-MAILIST] Motors for dry submersible

Hi guys
 
Please give me some advice with regards to a powerplant I need for a dry submersible, max 30 m.
 
I need to propel a 2-seater, 500kg craft at reasonable speed (4-6 knots) for about 2 hours.
 
So, my question(s):
 
  1. What thrusters/motors can I use that will give the speed I need?
  2. How can I steer the craft? Is there a reliable way of tilting/turning the thrusters to allow change of direction?
  3. Where do I buy all this?
Thanks
 
Mitch
South Africa